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Use of a Hanging-weight System for Isolated Renal Artery Occlusion
Published on: July 19, 2011
Insights
Asymptomatic solitary renal artery aneurysms in 67 patients were observed for up to 17 years. Most aneurysms remained silent, supporting conservative management over surgical intervention for these renal artery conditions.
Area of Science:
- Vascular Surgery
- Interventional Radiology
- Nephrology
Background:
- Solitary renal artery aneurysms (SRAA) are rare vascular conditions.
- Management strategies for SRAA, particularly asymptomatic cases, require further investigation.
- Fibromuscular dysplasia was excluded to focus on other etiologies of SRAA.
Purpose of the Study:
- To evaluate the natural history and outcomes of patients with solitary renal artery aneurysms.
- To determine the safety and efficacy of conservative management for asymptomatic SRAA.
- To assess the incidence of complications, including rupture and hypertension, in observed SRAA patients.
Main Methods:
- Retrospective review of 67 patients diagnosed with solitary renal artery aneurysms between 1968 and 1978.
- Diagnosis confirmed via arteriography, abdominal roentgenography, or surgical findings.
- Long-term follow-up (mean 5.7 years) to monitor aneurysm behavior and patient outcomes.
Main Results:
- Of 67 patients, only 8% were symptomatic (abdominal pain).
- 69% of patients had associated hypertension; no new cases developed during follow-up.
- No aneurysms ruptured, required repair, or led to nephrectomy; no aneurysm-related deaths occurred.
Conclusions:
- Asymptomatic solitary saccular renal artery aneurysms demonstrate a benign clinical course.
- Conservative observation appears to be a safe management strategy for asymptomatic SRAA.
- Surgical intervention may not be necessary for all patients with solitary renal artery aneurysms.
Abstract:
The records of all patients with solitary renal artery aneurysms seen between January 1968 and December 1978 were reviewed. Patients with fibromuscular dysplasia were excluded from analysis. Of the 67 patients seen, 34 had the diagnosis made on the basis of arteriography, 31 on the basis of abdominal roentgenography, and 2 at surgery. The ages of the 67 patients (34 men and 33 women) ranged from 21 to 90 years, with a mean of 61 years. Only five patients (8%) were symptomatic; all five presented with abdominal pain. Forty-six patients (69%) had associated hypertension. Five patients underwent surgical repair when initially seen. Only one patient had preoperative abdominal pain that was considered to be related to the aneurysm. The aneurysm sizes ranged from 0.3 to 4.0 cm, with a mean of 1.5 cm. In 45 patients (67%) the aneurysm was calcified. Follow-up ranged from 1 to 17 years, with a mean 5.7 and a median of 8.0 years. During follow-up, all aneurysms remained clinically silent. No aneurysms were subsequently repaired, no new cases of hypertension developed, no nephrectomies had to be performed, and no ruptures occurred. Eight patients (12%) died; no death was related to a complication of the aneurysm. This study supports the view that patients with asymptomatic solitary saccular renal artery aneurysm may be safely observed without surgical intervention.
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